Type-writing machine.



W. J. BARRON.

TYPE WRITING MACHINE.

APPLICATION Plum AUG. 22, 1910.

1,003,415, Patented Sept. 19', 1911.

2 SHEETB-SHEET 1.

WITNEEIEEEI: INVENTUR:

HIEATTURNEV coLuMmA PLANOURAPH co.,\vASmN01-0N. n, c4

TYPEWRITING MACHINE.

APPLICATION FILED AUG. 22, 1910. 1,003,41 5. Patented sept. 19, 1911( 2SHEETS-SHEET 2.

I-IISATTDRNEY CDLUMDIA PLANOGRAPH co.,w^sMlNd'roN. D. C.

UNITED STATES PATENT OFFICE.

WALTER J'. BARRON, OF NEW YORK, N. Y., ASSIGNOB. TO REMINGTON TYPEWRITERCOMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPEeWBTING MACHINE.

Application le. August 22, 1310.

To all whom t may concern.

Be it known thatI I, WALTER (l. BARRON, citizen of the United States,and resident of the borough of Brooklyn, city of N ew York, in thecounty of Kings and State of New York, have invented certain new anduseful Improvements in Type-lVriting Machines, of which the following isa specification.

My invention relates especially to ribbon mechanisms for typewritingmachines and its object, Generally stated, is to provide improveddevices of the character specified.

More specifically the object of my invention is to provide for employingat will selected ribbon fields of a vibratory ribbon mechanism adaptedto machines of the platen shifting class.

To the above and other ends my invention consists in the features ofconstruction, combinations of devices and arrangements of partshereinafter described and particularly pointed out in the claims.

My invention is shown in the present application as applied to the No.10 Remington typewriting machine and is designed as an improvement onthe ribbon mechanism found in said machine and which forms thesubject-matter of several prior patents including the patent to Felbel,903,461, granted November 10th, 1908- and that to Yaw No. 920,410,granted May 4th, 1909. The aforesaid machine is of the shifting platen,front-strike style, but it is to be understood that the nature of theinvention is such that it may be adapted in whole or in part to othermakes of front-strike typewriting machines as well as to other kinds ofwriting machines.

In the accompanying drawings which illustrate one form of my invention,Figure 1 is a vertical transverse rear view of a No. 10 Remingtontypewriting machine embodying my invention, parts of the machine beingomitted and parts broken away. Figs. 2 and 3 are fragmentary rearelevations showing parts of the ribbon mechanism. certain of the partsbeing shown in diiferent relations in the two figures. Fig. 4 is aperspective view of the vibrator restoring spring and its adjuncts. Fig.5 is a detail perspective view of' an adjustable block which provides aconnection between the operating lever and actuating link.

The main frame of the machine com- Specicaton of Letters Patent.

Patented Sept. 19, 1911.

Serial No. 578,361.

prises, as shown in Fig..1, a base frame l from which rise posts 2supporting a top plate 3. Key levers 4 are fulcrumed in the base frameand are connected with type bars which are adapted to co-act with thefront face of a platen 5 mounted on a traveling carriage, said carriagecomprising a platen frame shiftable on a truck to change case, saidtruck being connected with a spring drum, letter space movements of thecarriage being controlled by escapement devices. rThel type bars andconnections, carriage truck, spring drum and escapement devices areomitted from the drawings but may be of the usual or any other suitableconstruction. The escapement devices are operative from a link 6 whichconnects to an arm 7 extending horizontally rearward from the middle ofa rock shaft 8 pivoted to pins 9 supported in the base frame. The rockshaft is provided at its ends with rearwardly extending arms 10 fromwhich depend arms 11 supporting a universal bar 12 which underlies thekey levers 4. Each key lever is adapted, when actuated, to operate theuniversal bar and rock the shaft 8 to actuate the escapement devices andpermit letter feeding of the carriage.

As shown in the No. 10 Remington machine and in the patents aforesaid,the platen is shiftable by a key( controlled shift frame which comprisesa shift rail 13 supported at its ends by upright rods 14 which areconnected to a cross bar 15, said bar being supported at its ends onvertical arms 16 pivotally connected with shift levers 17, each shift`lever being provided with a key 17a at one side of the key-board of themachine. The operation of either shift key 17a raises the platen shiftframe comprising the bar 15 and rod 13 and thereby lifts the platen andplaten frame to upper case position, the lower bar 18 of the platenframe being provided with a roller 18a which runs on the rail 13.

A ribbon 19 which as illustrated is divided longitudinally into stripesa and b of different characteristics or colors is wound upon ribbonspools 20. The ribbon spools are vertically arranged one at each side ofthe machine below the to-p plate and forward of the platen, each spoolbeing .supported at the front end of a horizontal shaft 21 bearing inlugs 22 depending from the top plate. The shafts are adapted to bealternately connected by t-he mechanism shown in the machine or in anyother suitable way to the spring drum or carriage power, the connectionsoperating to turn the spools 1n alternation to wind the ribbon lirst onone spool and then on the other and thus feed it longitudinally back andforth.

Midway between the ribbon spo-ols the ribbon 19 is threaded through theslots in a vibratory ribbon carrier or vibrator 23.

Said ribbon carrier or vibrator is vertically' disposed at the front ofthe platen and of the segmental type bar support 24 and at its lower endcurves rearward, terminating in a stem 23 which extends verticallydownward behind the type bar support and is guided and supported upon abracket 25 suitably secured to said support. As appears froin Figs. 1and 4 a wire arm 26 is hooked over the lower end of the stem 23aL anddepends therefrom, said arm 26 being guided at its lower end in an eye27 formed at the free end of an L-shaped wire guide 28 which is fastenedby a screw 29 to the shiftable bar 15. A coiled spring 30 surrounds thelower portion of the arm 26 and is hooked at its upper end over a loop26:L in said arm, the lower end of said spring being hooked over the eye27. The spring 30 serves as a restoring spring to return the vibrator tonormal position after it has been actuated.

The actuating devices for the vibrator comprise a stud 31 on the stem23a, said stud projecting rearward and being grooved to coperate withthe slotted inner end of the shiftable part 32 of an operating lever.The lever part 32 extends from the ribbon vibrator leftward (rightwardas viewed from the rear in Figs. 1 to 3) and is pivotally connected at33 with the second or main part 34 of the operating lever, said part 34being in itself a lever and fulcrumed at 35 to a stationary bracket 36which is secured by screws 36*l to a segmental plate 3Gb fixed to thetype bar support 24. The pivot 33 is on one arm of the lever part 34 atone side of the fulcrum 35 whilel the other army of said lever part isformed with a longitudinal slot 37 which receives a slidable block 38(Fig. 5) which`- is adapted to be set or clamped in usted position onthe lever part by a clamping screw 39 and a washer 40. The block carriesa lateral pin 41 which is engaged by the upper end of a depending link42, said link extending downward and being connected'at its lower endwith a crank arm 43 extending rearward from the rock shaft 8. It will beunderstood that when a key lever is depressed the rock shaft will beturned to pull thelink down and operate the lever part 34 and through itthe lever part 32 and the vibrator. Then the operated key l-ever 4 isreleased the parts will return to normal position, be-

ing assisted by the spring 30 and by a coiled spring 44 which isconnected to the rock shaft 8 and to the type bar support 24.

During vibratory movements the relationship between the lever parts 32and 34 of the operating lever are controlled by means next to bedescribed. The operating lever, it

-may be said, is made in two parts as 32 and 34 to enable one of theparts to be shifted rclatively to the other for the sole purposeheretofore of automatically changing the relationship of said leverparts during the platen shifting operation to compensate for the platenvshift and enable the normal relat-ionship of the printing portion ofthel ribbon to the printing point on the platen to remain unaltered as aresult of the platen shift. The devices for controlling the relationshipbetween the two parts of the lever comprise a link 45 which is pivotallyconnected at 46 to a tail or extension 321 on the lever part 32, saidtail extending leftward below the fulcrum 35. The link 45 extends upwardfrom the pivot 46 and is pivotally connected at 47 with a lever 48fulcrumed at 35 and pivotally connected at 4S) with an arm 50 extendingupward from the shift bar 15. As shown in the Remington machine and inthe patent to Yaw aforesaid, the arm corresponding with 50 is fixed tothe bar 15 but in the present construction the bar and arm have avariable slidable connection, the arm being provided with a verticalslot 51 which is engaged by a screw pin 52 on the shift bar 15. Thenormal relationship between the arm 5() and the bar 15 is preferablymaintained as hereinafter described. It will be noted, however, thatindependently of any other means the screw pin 52 is adapted to coperatewith the top of the slot 51 to maintain a normal relationship betweenthe two parts of the operating lever in both lower and upper casepositions. Then the member or lever part 34 is vibrated on its fulcrum35 through the described connections with the printing keys, the pivot33 carried on said member 34 will be correspondingly vibrated and thelever part 32 supported on the pivot 33 will be bodily raised andlowered. During these vibratory movements the part 32 will be controlledso far as rotative movement on its pivot 33 is concerned by the link 45,the upper pivotal point of connection 47 of said link remaining fixedduring these vibratory movements of the member 34. By reason of thecontrolling of the part 32 as just described, the relationship it willbear tothe lever part 34 when in printing position can be accuratelypredetermined and the throw communicated to the part 32 through the part34 can be adjusted readily so as to present a predetermined portion ofthe ribbon to the printing point at will. lVhen the adjustable block 38is clamped along the lever part 34 to hold the pin or stud 41 set in theposition shown in Figs. 1 to 3, then the pull of the link 42 whenactuated from any one of the printing keys will operate to lift thelever part 32 and the ribbon carrier from the normal position shown inFig. 1 to the abnormal position shown in Fig. 2. From Fig. 2 it will beobserved that the ribbon 19 has been lifted far enough to present itsupper field a to the printing point p on the platen.

If at any time it is desired to change from lower to upper case, one ofthe shift keys 17 a may be operated, lifting the shift frame and theplaten so that the upper case types will coperate with the plateninstead of the lower case types as theretofore. When the shiftframe israised the part or bar 15 comprised therein will rise and throughdevices hereinafter described raise the arm 50, causing said arm toraise one arm of the lever 48 and correspondingly lower the other arm ofsaid lever, forcing downward the link 45 pivoted to said other arm at47. Said link in its downward movement operates on the tail 32a of thelever part 32, forcing the tail downward about the pivot 33 and liftingthe body portion of the lever part 32 and also lifting the ribbonvibrator 23. Thus the vibrator will be shifted automatically when theplaten is shifted, and the parts are .so proportioned and arranged thatthe normal relationship between said platen and printing portion of theribbon, or that portion between the slots in the vibrator, will not bealtered by reason of the platen shift but will be the same subsequent tothe shift as prior thereto. The part 34 of the operating lever willremain quiescent during the' automatic change of position of the part 32and the vibrator due to the platen shift; and consequently the vibratorymovement communicated to the vibrator through the lever part 34 and link42 will be the same in extent subsequent to the shifting as priorthereto. The result will be that when in upper case position thevibrator will be lifted at printing operation to present the upperribbon field a to the printing point just the same as prior to theplaten shift.

In the Remington No. 10 machine and in the prior patents aforesaid, whenit is desired to change ribbon fields this result is accomplished byshifting the link 42 relatively to the lever part 34 so as to vary thedistance from the fulcrum 35 at which said link 42 acts. In other words,when it is desired to present the lower ribbon field to the types thelink is set closer to the fulcrum to communicate a greater extent ofthrow to the operating lever and vibrator. This change in the setting ofthe link, it will be understood, does not affect the normal position ofthe lever parts. By my present invention I provide for changing theribbon fields without disturbing the set relationship between the leverpart 34 and the link 42. Instead, I accomplish this result by varyingthe normal relationship between the lever parts 32 and 34.

To vary the normal relationship between the lever parts 32 and 34 tochange ribbon fields, I provide manually controlled devices which in thepresent instance comprise a slide bar 53 provided with longitudinalslots 54 which receive headed screws 55 engaging in the rear of theshift bar 15. The bar 53 is thus slidably secured to the rear face ofthe bar 15 and will participate in the shift movements communicated tosaid bar when the platen is shifted. As viewed from the rear theslidable member or bar 53 extends rightward from its left handsupporting screw 55 and just to the left of the arm 50` is provided witha horizontal seat or supporting portion 56 from which the upper edge ofthe bar 53 is inclined downward and rightward, forming a cam edge 57terminating in a lower horizontal seat 58 for the lower end of the arm50. The part 562L forming the seat 56 and cam 57 is separated by a slot56b from the body of the bar so that said part 56a may be readily bentfor adjustment. At the end of the seat 58 the bar 53 has a verticalportion 53a and thence extends rightward behind the shift bar 15,terminating in a vertical portion 59 formed with a vertical slot 60.Engaging with the slot is a pin 61 4carried at the outer end of a crankarm 62,

said crank arm being iixed to a shaft 63, the latter bearing in fixedsupports 64 and extending horizontally forward, being provided at thefront of the machine with a key or finger button 65. By turning the key65 the shaft 63 may be rocked carrying the crank arm 62 from theposition shown in Fig. 1 to that shown in Fig. 3. During the change ofposition of the crank arm in pin 61 Vwill operate through the slot 60 toshift the slide bar 53 along the bar 15. As the slide bar shifts the camedge 57 will act against the lower end of the arm 50 and will raise saidarm until, when the movement of the parts cease, said arm will be seatedon the upper seat 56 as shown in Fig. 3. The upward movement of the arm50 acts through the lever 48 and link 45 to change 'the normal positionof the lever part 32,

raising the inner or left hand end of said lever part andcorrespondingly raising the vibrator 23 to a new normal position. Thischange in the normal position of the lever part 32 and vibrator 23 takesplace without altering the normal position of the lever part 34 and link42 which remain as in Fig. 1. It will be apparent that owing to theraising of the normal position of the vibrator the printing portion ofthe ribbon will be correspondingly lifted. The parts are so proportionedthat if now a printing key be operated it will act through the universalbar and the link 42 on the lever part 34 and through itwon the leverpart 32 to raise the vibrator far enough to present the lower ribbonfield to the printing point on the platen. The position of the parts atthe printing moment is shown in Fig. 3.

It will be apparent that since the field changing member 53 and the arm50 which it controls shift with the bar 15 and the remainder of theplaten shifting frame, the effect of shifting the bar 53 to change colorwill be the same in lower case as in upper case and that after `suchshift or change has been effected in one case position, as lower caseposition for eXample, it will continue after the platen hasbeen'shifted. In other words, if'th'e bar 53 be shifted to change fromthe upper field a to the lower field `b when the platen is in lower caseposition, then after the platen has been shifted to ulpper vcaseposition the actuation of the printing keys will lstill operate topresent the lower field Z) to the types; and on the other hand if theshift of'ribbon fields had been eected in upper case position, vthe newribbon field would still be presented to the types after the platen hadbeen restored to lower case position.

By my present invention I provide a simple and effective means forvarying the widthwise portion of the ribbon presented to the types, saidmeans being effective either in the lower case position or in theshifted position of the platen, the change of ribbon fields being,effected without varying the normal relationship between the operatinglever or member and the means for actuating it which means in thepresent instance comprises the link 42; that is to say, the leverage isalways the same.

It will be observed that I combine with a platenV and platen shiftingmeans a ribbon vibrator having a support (such as the twopart operatinglever) mounted on a fiXed part' (such as the bracket 36) which isindependent of the platen shifting means, tol gether with means forshifting the vibrator with the platen and for at will shifting thevibrator independently of the platen; that when the vibrator is shiftedwith the platen, the normal relationship between the two is not varied,while when the vibrator is shifted independently of the platen thenormal relationship between said vibrator and said platen is varied;that connections between the vibrator and platen shifting means arecombined with means operating on said connections independently of saidshifting means for shifting the vibrator, the independently operatingmeans in the present instance comprising the key controlled member,device or slide bar 53; that said device operates to shift the vibratorso that when'the latter :is subsequently operated a dierent widthwiseportion of the ribbon is presented to the types; that devices includingthe slide bar 53 are operative at will by hand through the finger buttonor automatically through the shifting bar 15 when the platen is shifted;that separate means including thelink 42 are provided for actuating thevibrator and the operating lever at printing operation; that saidoperating lever is in two parts one jointed to the other; that it has afixed fulcrum; that one of the parts is connected to the vibrator and ismovable therewith independently of the other or main part which has afixed point of `connection with the actuating device or link 42; thatthrough said actuating device the two-part operating lever is operatedas a whole at printing operation; that the means for changingthevibrator to change the ribbon fields operates on the lever part whichis connected directly with said vibrator and does not affect the otherlever part; that means are provided for holding t-he two parts of theoperating lever in one or 'another of a plurality of normal positions,said means in the present instance comprising a link pivoted to one partand a second lever to which said link is also pivoted, said second leverbeing connected through the device or arm 50 to the shift bar 15; thatsaid second lever is concentric or eo-aXial with the operating lever,the axis of both levers being fixed; that the connections between saidsecond lever and the platen shifting mechanism comprise the device orarm 50; that said arm has a variable relationship with the platenshifting devices including the bar 15; that means are provided forvarying said relationship, the said means comprising the slidable bar53; that the vibrator is connected with restoring devices which returnit to normal position after actuation, said restoring devices comprisingan arm depending from' said vibrator, a guide member for said arln, anda spring connection between said arm and said guide member; and thatsaid connection in the present instance includes a spring coiled aroundsaid depending arm.

Various changes may be made without departing from the spirit and scope0f my in- Vention.

What I claim as new and desire to secure by Letters Patent, is

l. In a typewriting machine, the combination of a platen, a ribbonvibrator, an operating lever, shifting means for the platen connected toone arm of said operating lever, devices for shifting the vibratorindependently of said platen, said devices being connected to the samearm of said operating lever as said platen shifting means, and keyoperated means for vibrating said vibrator at printing operations, saidkey operated means being connected to the other arm of said operatinglever.

2. In a typewriting machine, the combination of a shiftable platen,platen shifting means, a ribbon vibrator, an operating lever', mechanismconnected to one arm of said operating lever for shifting said vibratorwith said platen and for at will shifting said vibrator independently ofsaid platen, and key operated means connected to the other arm of saidoperating lever for vibrating said vibrator at printing operation.

3. In a t-ypewriting machine, the combination of a shiftable platen,platen shifting means, a ribbon vibrator, an operating lever, mechanismconnected to said lever for at will shifting said vibrator independentlyof said platen, printing keys, and connections between said print-ingkeys and said operating lever, said connections being independent ofsaid mechanism.

l. In a typewriting machine, the combination of a platen, shifting meanstherefor, a ribbon vibrator, an operating lever having a fixed fulcrum,mechanism operative on said lever for shifting said vibrator with saidplaten and for at will shifting said vibrator independently of saidplaten, and key operated means for vibrating said vibrator at printingoperation, said key operating means being connected to said operatinglever independently of said mechanism.

5. In a typewriting machine, the combination of a shiftable platen,platen shifting means, a ribbon vibrator having a support mounted on afixed part independent of said shifting means, key controlled means foractuating said vibrator including a lever, connections between saidplaten shifting means and said lever for actuating said lever from saidplaten shifting means, and means operative at will independently of saidplat-en shifting means for shifting said lever.

6. In a typewriting machine, the combination of a shiftable platen, aone-piece ribbon vibrator, vibrating means including a lever and anactuating member, means for shifting the vibrator with the platenwithout changing the relationship between said lever and said member andmeans for shifting the vibrator independently of the operation of theplaten shifting means and without changing the point of connectionbetween said lever and said member.

7. In a typewriting machine, the combination of a ribbon vibrator, atwo-part operating lever, a key controlled member for actuating saidlever, and means for shifting the vibrator to change the widthwiseportion of the ribbon presented to the types by varying the relationshipbetween the lever parts but without changing the point of connectionbetween said lever and said member.

8.111 a typewriting machine, the combination of a platen, platenshifting means, a ribbon vibrator, a two-part operating lever connectedwith said vibrator, a key controlled actuating member having anunvarying point of connection with said operating lever, connectionsbetween said plat-en shifting means and one part of said operating leverfor shifting said one part when the platen is shifted, and means forshifting said one part independently of the platen.

9. In a typewriting machine, the combination of a shiftable platen, aribbon vibrator shiftable with saidl platen, an operating lever having asingle fulcrum, which fulcrum has the same normal position for bothshift positions of the platen, means for shifting said vibrator bothwith the platen when it is shifted and independently of the shifting ofthe platen, and separate means for actuating said lever at printingoperation, said separate means being connected to said leverindependently of said first named means.

10. In a typewriting machine, the combination of a shiftable platen,means for shifting the same, a ribbon vibrator, an operating levertherefor having a fixed fulcrum, said operating lever being made inparts, one part being connected to said vibrator and being movabletherewith independently of the other part of said lever, and meansconnected with the platen shifting means for automatically shifting onepart of said lever and the connected ribbon vibrator simultaneously withthe shifting of the platen, said means being operative independently ofthe platen shift to change the normal position of said vibrator.

11. In a typewriting machine,the combination of a ribbon vibrator, atwo-part operating lever, means for actuating said lever as a whole atprinting operation, and means operative on one part only of said leverto vary the relationship between the two parts of said lever and changethe position of said vibrator, said means being operative bothautomatically and by hand.

12. In a typewriting machine, the combination of a platen and platenshifting mechanism of a ribbon vibrator, a two-part jointed operatinglever having one part pivotally connected to said vibrator, an actuatinglink connected to the other lever part, and means connected with theplaten shifting mechanism to change the relationship between the ointedparts of said lever, said vibrator being movable at will to presentdifferent widthwise portions of the ribbon to the types without changingthe point of connection between said lever and said actuating link.

13. In a typewriting machine, the combination of a ribbon vibrator, atwo-part operating lever therefor, means for holding the two parts ofsaid lever in one or another of a plurality of normal relations, saidmeans comprising both a link pivoted to one part and also a second leverto which said link is also pivoted, means for actuating said last namedmeans both automatically and by hand, andv means for vibrating saidoperating lever at printing operation.

.14. In 'a typewriting machine, the combination with a platen and platenshifting devices, of a vibratory ribbon carrier, a twopart operatinglever, 'one lever part having a fixed fulcrum and pivotally supportingthe other lever part, a link pivoted to said' other lever part, a secondlever to which vsaid link is also pivoted, connections between saidsecond lever and said platen shifting devices, and means for at willvarying saidconnections.

15. In a typewriting machine, the combi` nation with a platen andyplaten shifting devices, of a bibratory ribbon carrier, an operatinglever comprising` two parts, one lever part having a fixed fulcrum andpivotally supporting the other lever part, a link pivoted to said otherlever part, a second lever to which said link is also pivoted,connections between said second lever and said platen shifting devices,said connections comprising an arm having a variable relationship withsaid platen shifting devices, and means for changing the relationshipbetween said arm and said platen shifting devices.

16. In a typewriting machine, the combination with a platen and platenshifting devices, of a ribbon vibrator, an operating lever comprisingtwo parts, one lever part having a fixed fulcrum and pivotallysupporting the other part, connections between said other part and saidplaten shifting devices, and means for at will varying the normalrelationship between said connections and said platen shifting devices.

17. In a typewriting machine, the combination with a platen and platenshifting devices, of a ribbon vibrator, a two-part operating lever, onepart pivotally supporting the other part, connections between said otherpart and said platen shifting devices, and means operative at will onsaid connections to vary the normal relationship between the two partsof said lever.

18. In a typewriting machine, the combination with a platen and platenshifting devices, of a ribbon vibrator, a two-part operating levertherefor, the first part of said lever having a fixed fulcrum and thesec` Vond part being pivoted on said first part, a

second lever having axis of rotation 'coinci- -dent with the axis ofrotation of said operating lever and connected thereto, connectionsbetween said second lever and said platen shifting devices, and meansoperative at will`on said connections to vary the normal relationshipbetween the two parts of said operating lever.

19. In a typewriting machine, the combination with a platen and platenshifting devices, of a ribbon vibrator, a two-part operating levertherefor, the first part of said lever having a fixed fulcrum and thesecond part being pivoted on said first part, a second lever having axisof rotation coincident with the axis of rotation of said operating leverand connected thereto, connections between said second lever and saidplaten shifting devices, a link connecting said second lever and saidsecond part of said operating lever, a key actuated universal bar,connections between said universal bar and Jthe first or main part ofsaid operating lever, and hand-controlled means for varying theconnections between said second lever and said platen shifting devices.

20. In a typewriting machine, the combination of a platen, platenShifting devices comprising a sliiftable bar, a vibratory ribboncarrier, an operating lever therefor comprising two parts, the firstpart having a fixed fulcrum and the second part being pivoted on thefirst part and being provided with a tail or extension, a second leverhaving a fixed fulcrum, a link connecting one arm of said second leverwith said tail or extension, an arm connected to said shiftable bar andpivotally connected with said second lever at the side of its fulcrumopposite from said link, means for varying the relationship between saidarm and said universal bar, and means for actuating said operating leverat printing operation.

21. In a typewriting machine, the combination of a platen, platenshifting devices comprising a shiftable bar, a vibratory ribbon carrier,an operating lever therefor comprising two parts, the first part havinga fixed fulcrum and the second part being pivoted on the first part andbeing provided with a tail or extension, a second lever having a fixedfulcrum, a link connecting one arm of said second lever with said tailor extension, an arm connected to said shiftable bar and pivotallyconnected with said second lever at the side of its fulcrum oppositefrom said link, means for varying the relationship between said arm andsaid shiftable bar, and means for actuating said operating lever atprinting operation, said last named mea-ns comprising a hand controlledslide rod operative to slide said arm on said shiftable bar.

22. In a typewriting machine, the combination of a platen, platenshifting devices comprising a shiftable bar, a vibratory ribbon carrier,an operating lever therefor comprising two parts, the rst part having afixed fulcrum and the second part being pivoted on the irst part andbeing provided with a tail or extension, a second lever hav ing a fixedfulcrum, a link connecting one arm of said second lever with said tailor extension, an arm connected to said shiftable bar and pivotallyconnected with said second lever at the side of its fulcrum oppositefrom said link, means for' varying the relationship between said arm andsaid universal bar, said last named means comprising a shiftable bar forsetting said arm, and devices for shifting said bar, said devicescomprising a crank arm having a loose connection with said bar, a shaftcarrying said crank arm, and a finger key connected to said shaft forturning the same,

23. ln a typewriting machine, the combi` nation of a platen, platenshifting devices comprising a shiftable bar, a vibratory ribbon carrier,an operating lever therefor comprising two parts, the lirst part havinga Xed fulcrum and the second part being pivoted on the first part andbeing provided with a tail or extension, a second lever having a fixedfulcrum, a link connecting one arm of said second lever with said tailor extension, an arm connected to said shiftable bar and pivotallyconnected with said second lever at the side of its fulcrum 0ppositefrom said link, and means for varying the relationship between said armand said shiftable bar, said last named means comprising a handcontrolled slide bar provided both with a cam operative on said arm andalso with two supporting or resting portions one above the other and atopposite ends of said cam.

24C. In a typewriting machine, the combination of a ribbon vibrator,actuating devices therefor, and restoring devices for returning saidvibrator after actuation, said restoring devices comprising an armdepending from said vibrator, a guide member for said arm, and a springconnection between said arm and said guide member.

25. In a typewriting machine, the combi-v nation of a ribbon vibrator,actuating devices therefor, and restoring devices for returning saidvibrator after actuation, said restoring devices comprising an armdepending from said vibrator, an arm loosely depending rom saidvibrator, a member having an eye for guiding the lower end portion ofsaid arm, and a coiled spring surrounding said arm and connected theretoand also connected to said eye.

Signed at Hingham, in the county of Plymouth, and State of Massachusettsthis 18th day of August A. D. 1910.

WALTER J. BARRON.

Witnesses:

ERNEs'r E. LINCOLN, CARRIE V. WHITE.

Copies of this patent may be obtained for iive cents each, by addressingthe Commissioner of Patents. Washington, D. C.

